Home / 52,059.96-78,089.76-12,617.28

Finding the Fourth Proportional to 52,059.96, 78,089.76 and 12,617.28

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Solution

The fourth proportional to 52,059.96, 78,089.76 and 12,617.28 is: 18,925.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,059.96 : 78,089.76 = 12,617.28 : x
  2. Step 2: Convert to fraction form
    52,059.96/78,089.76 = 12,617.28/x
  3. Step 3: Cross multiply
    52,059.96x = 78,089.76 × 12,617.28
  4. Step 4: Simplify right side
    52,059.96x = 985,280,367.05
  5. Step 5: Solve for x
    x = 985,280,367.05/52,059.96
  6. Step 6: Final answer
    x = 18,925.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.